of 17th CENTURY philosopher
René Descartes.
The Big Bang Theory Season 12, Episode 10
Pizza dates back to the 16th CENTURY...
The Big Bang Theory Season 4, Episode 9
It's the 21st CENTURY.
The Big Bang Theory Season 5, Episode 17
Bosoms would not have said, "Howdy,"
in the 15th CENTURY.
The Big Bang Theory Season 2, Episode 2
Fine. How about one of the most beguiling
and influential couples of the 20th CENTURY?
The Big Bang Theory Season 6, Episode 5